In my opinion, there is no need to make our liturgies shorter. Current Greek and Antiochian practice is good enough for none-monastic Divine Liturgies. For example, in Greek and Antiochian churches we chant for the First Antiphon: "Thru the intercessions of the Theotokos," instead of Psalm 102: "Bless the Lord, o my Soul...."
A Liturgy with one celebrant, no deacon, choir, no homily, no one receiving holy communion, should take approximately 1 hour and 10 minutes. Let us add maximum of 10m for the homily, 20m for communion. Greek/Antiochian liturgy should take at least approx. 1hr30- to 1hr40m.
Here is a the order of the Liturgy with the approximate time for each part.
1. The Great Litany in Tone 8 - approx: 5:40m
2. The First Antiphon in Tone 2 — 56 seconds
3. The Little Litany in Tone 8 — 1:35m
4. The Second Antiphon in Tone 2 2:35m
5. The Little Litany in Tone 8 — 1:35m
6. The Third Antiphon —ÂÂ
Troparion for the Resurrection in Tone 1 While the stone…
  & the Little Entrance Hymn
  & the Kontakion to the Theotokos for ordinary Sundays. 4:00m
7. Holy God in Tone 2 — 3:50m
8. The Epistle reading — Alleluia in Tone 2 — approx 4m
9. The Gospel reading — Glory to Thee, O Lord…in Tone 8 — approx 4m ÂÂ
10. The Cherubic Hymn in Tone 1 — approx 8m
11. The Litany of Supplication in Tone 5 (enharmonic) —5m
12. The Peace in Tone 5 (enharmonic) and the Creed - 2m
13. The Anaphora in Tone 5 (enharmonic) — 5m
14. Megalynarion in Tone 5(enharmonic) It is truly meet… - 2-3m
15. Among the first be mindful, O Lord, of our Father, 1:23m
16. The Litany Before the Lord's Prayer in Tone 8 & 5(enharmonic)
   & The Lord's Prayer
   & One is Holy….        3:50m
17. Communion Hymn - Praise the Lord in Tone 8 — 4m
18. Blessed is He in Tone 2ÂÂ
   & Receive me today in Tone 8 (Ga)
   & We have seen the true light in Tone 2
   *Thanksgiving After Holy Communion*
   Let our mouths be filled with Thy praise in Tone 5
   & The Litany of Thanksgiving   -5m
19. The prayer behind the Ambon —1m
20. Blessed be the Name of the Lord in Tone 2 -2m
21. The Dismissal — 1:20m
In Christ,
SBDK